Introduction to HAProxy ACLs - HAProxy Technologies

When IT pros add load balancers into their infrastructure, of course theyre looking for the ability to scale out their websites and services, get better availability, and gain more restful nights knowing that their critical services are no longer single points of failure. Before long, however, they realize that with a full-featured load balancer like HAProxy Enterprise Edition, they can add in extra intelligence to inspect incoming traffic and make decisions on the fly. For example, you can restrict who can access various endpoints, redirect non-https traffic to https, detect and block malicious bots and scanners, and define conditions for adding HTTP headers, changing the URL or redirecting the user.